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48
49#include "qopenglfunctions_2_0.h"
50#include "qopenglcontext.h"
51
52QT_BEGIN_NAMESPACE
53
54/*!
55 \class QOpenGLFunctions_2_0
56 \inmodule QtGui
57 \since 5.1
58 \wrapper
59 \brief The QOpenGLFunctions_2_0 class provides all functions for OpenGL 2.0 specification.
60
61 This class is a wrapper for functions from OpenGL 2.0 specification.
62 See reference pages on \l {http://www.opengl.org/sdk/docs/}{opengl.org}
63 for function documentation.
64
65 \sa QAbstractOpenGLFunctions
66*/
67
68QOpenGLFunctions_2_0::QOpenGLFunctions_2_0()
69 : QAbstractOpenGLFunctions()
70 , d_1_0_Core(0)
71 , d_1_1_Core(0)
72 , d_1_2_Core(0)
73 , d_1_3_Core(0)
74 , d_1_4_Core(0)
75 , d_1_5_Core(0)
76 , d_2_0_Core(0)
77 , d_1_0_Deprecated(0)
78 , d_1_1_Deprecated(0)
79 , d_1_2_Deprecated(0)
80 , d_1_3_Deprecated(0)
81 , d_1_4_Deprecated(0)
82 , m_reserved_2_0_Deprecated(nullptr)
83{
84}
85
86QOpenGLFunctions_2_0::~QOpenGLFunctions_2_0()
87{
88 if (d_1_0_Core) {
89 d_1_0_Core->refs.deref();
90 Q_ASSERT(d_1_0_Core->refs.loadRelaxed());
91 }
92 if (d_1_1_Core) {
93 d_1_1_Core->refs.deref();
94 Q_ASSERT(d_1_1_Core->refs.loadRelaxed());
95 }
96 if (d_1_2_Core) {
97 d_1_2_Core->refs.deref();
98 Q_ASSERT(d_1_2_Core->refs.loadRelaxed());
99 }
100 if (d_1_3_Core) {
101 d_1_3_Core->refs.deref();
102 Q_ASSERT(d_1_3_Core->refs.loadRelaxed());
103 }
104 if (d_1_4_Core) {
105 d_1_4_Core->refs.deref();
106 Q_ASSERT(d_1_4_Core->refs.loadRelaxed());
107 }
108 if (d_1_5_Core) {
109 d_1_5_Core->refs.deref();
110 Q_ASSERT(d_1_5_Core->refs.loadRelaxed());
111 }
112 if (d_2_0_Core) {
113 d_2_0_Core->refs.deref();
114 Q_ASSERT(d_2_0_Core->refs.loadRelaxed());
115 }
116 if (d_1_0_Deprecated) {
117 d_1_0_Deprecated->refs.deref();
118 Q_ASSERT(d_1_0_Deprecated->refs.loadRelaxed());
119 }
120 if (d_1_1_Deprecated) {
121 d_1_1_Deprecated->refs.deref();
122 Q_ASSERT(d_1_1_Deprecated->refs.loadRelaxed());
123 }
124 if (d_1_2_Deprecated) {
125 d_1_2_Deprecated->refs.deref();
126 Q_ASSERT(d_1_2_Deprecated->refs.loadRelaxed());
127 }
128 if (d_1_3_Deprecated) {
129 d_1_3_Deprecated->refs.deref();
130 Q_ASSERT(d_1_3_Deprecated->refs.loadRelaxed());
131 }
132 if (d_1_4_Deprecated) {
133 d_1_4_Deprecated->refs.deref();
134 Q_ASSERT(d_1_4_Deprecated->refs.loadRelaxed());
135 }
136}
137
138bool QOpenGLFunctions_2_0::initializeOpenGLFunctions()
139{
140 if ( isInitialized() )
141 return true;
142
143 QOpenGLContext* context = QOpenGLContext::currentContext();
144
145 // If owned by a context object make sure it is current.
146 // Also check that current context is capable of resolving all needed functions
147 if (((owningContext() && owningContext() == context) || !owningContext())
148 && QOpenGLFunctions_2_0::isContextCompatible(context))
149 {
150 // Associate with private implementation, creating if necessary
151 // Function pointers in the backends are resolved at creation time
152 QOpenGLVersionFunctionsBackend* d = 0;
153 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_0_CoreBackend::versionStatus());
154 d_1_0_Core = static_cast<QOpenGLFunctions_1_0_CoreBackend*>(d);
155 d->refs.ref();
156
157 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_1_CoreBackend::versionStatus());
158 d_1_1_Core = static_cast<QOpenGLFunctions_1_1_CoreBackend*>(d);
159 d->refs.ref();
160
161 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_2_CoreBackend::versionStatus());
162 d_1_2_Core = static_cast<QOpenGLFunctions_1_2_CoreBackend*>(d);
163 d->refs.ref();
164
165 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_3_CoreBackend::versionStatus());
166 d_1_3_Core = static_cast<QOpenGLFunctions_1_3_CoreBackend*>(d);
167 d->refs.ref();
168
169 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_4_CoreBackend::versionStatus());
170 d_1_4_Core = static_cast<QOpenGLFunctions_1_4_CoreBackend*>(d);
171 d->refs.ref();
172
173 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_5_CoreBackend::versionStatus());
174 d_1_5_Core = static_cast<QOpenGLFunctions_1_5_CoreBackend*>(d);
175 d->refs.ref();
176
177 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_2_0_CoreBackend::versionStatus());
178 d_2_0_Core = static_cast<QOpenGLFunctions_2_0_CoreBackend*>(d);
179 d->refs.ref();
180
181 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_0_DeprecatedBackend::versionStatus());
182 d_1_0_Deprecated = static_cast<QOpenGLFunctions_1_0_DeprecatedBackend*>(d);
183 d->refs.ref();
184
185 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_1_DeprecatedBackend::versionStatus());
186 d_1_1_Deprecated = static_cast<QOpenGLFunctions_1_1_DeprecatedBackend*>(d);
187 d->refs.ref();
188
189 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_2_DeprecatedBackend::versionStatus());
190 d_1_2_Deprecated = static_cast<QOpenGLFunctions_1_2_DeprecatedBackend*>(d);
191 d->refs.ref();
192
193 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_3_DeprecatedBackend::versionStatus());
194 d_1_3_Deprecated = static_cast<QOpenGLFunctions_1_3_DeprecatedBackend*>(d);
195 d->refs.ref();
196
197 d = QAbstractOpenGLFunctionsPrivate::functionsBackend(context, QOpenGLFunctions_1_4_DeprecatedBackend::versionStatus());
198 d_1_4_Deprecated = static_cast<QOpenGLFunctions_1_4_DeprecatedBackend*>(d);
199 d->refs.ref();
200
201 QAbstractOpenGLFunctions::initializeOpenGLFunctions();
202 }
203 return isInitialized();
204}
205
206bool QOpenGLFunctions_2_0::isContextCompatible(QOpenGLContext *context)
207{
208 Q_ASSERT(context);
209 QSurfaceFormat f = context->format();
210 const QPair<int, int> v = qMakePair(f.majorVersion(), f.minorVersion());
211 if (v < qMakePair(2, 0))
212 return false;
213
214 if (f.profile() == QSurfaceFormat::CoreProfile)
215 return false;
216
217 return true;
218}
219
220QOpenGLVersionProfile QOpenGLFunctions_2_0::versionProfile()
221{
222 QOpenGLVersionProfile v;
223 v.setVersion(2, 0);
224 return v;
225}
226
227QT_END_NAMESPACE
228